搜索 - 科创

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引用第5楼370596521于2011-05-21 13:30发表的 : 化学方程式有问题，反应还会生成水！应该是2KMnO₄+ 3H₂O₂==== 2KOH + 2MnO₂↓ + 3O₂↑ + 2...

都怪百度百科上那个溶解度表，高锰酸铵写的明明是0.8g...........结果一查是8g.....差一个小数点。还以为氯化铵和高锰酸钾复分解就行了[s:240] 言归正传，先列出各产物溶解度 BaC...

1、原电池的“正极”和“负极” 正极和负极的说法，是将原电池作为一个对外输出能量的电源角度出发而言的，例如，伏打电池（铜片和锌片浸入稀硫酸）常被一些教材不严格地称为“铜锌原电池”，并认为铜片是电池的...

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